/**
 * DramaReview Theme Animation Effects
 * Contains various micro-animations for page loading, hover, click, etc.
 */

/* ===== Page Loading Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Page Element Animation Classes ===== */
.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-down {
  opacity: 0;
  animation: fadeInDown 0.8s ease-out forwards;
}

.slide-in-left {
  opacity: 0;
  animation: fadeInLeft 0.8s ease-out forwards;
}

.slide-in-right {
  opacity: 0;
  animation: fadeInRight 0.8s ease-out forwards;
}

.scale-in {
  opacity: 0;
  animation: scaleIn 0.6s ease-out forwards;
}

/* Delayed animations */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ===== Hover Animation Effects ===== */
@keyframes bounce {
  0%, 20%, 60%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(var(--primary-rgb), 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(var(--primary-rgb), 0.8);
  }
}

/* ===== Card Hover Effects ===== */
.review-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.review-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.review-card:hover .card-image img {
  transform: scale(1.1);
}

.review-card .card-image {
  overflow: hidden;
}

.review-card .card-image img {
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Button Animation Effects ===== */
.btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(0);
  transition: transform 0.1s;
}

/* ===== Rating Stars Animation ===== */
.rating-stars .star {
  transition: all 0.3s ease;
  transform-origin: center;
}

.rating-stars:hover .star {
  transform: scale(1.2);
}

.rating-stars .star:hover {
  animation: bounce 0.6s ease;
}

.rating-stars .star.filled {
  animation: scaleIn 0.3s ease;
}

/* ===== Navigation Menu Animation ===== */
.nav-menu a {
  position: relative;
  transition: color 0.3s ease;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

/* ===== Mobile Menu Animation ===== */
.mobile-menu {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.active {
  animation: slideInFromBottom 0.3s ease-out;
}

.mobile-menu-overlay {
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
  animation: fadeIn 0.3s ease;
}

/* ===== Search Overlay Animation ===== */
.search-overlay {
  transition: all 0.3s ease;
}

.search-overlay.active {
  animation: fadeIn 0.3s ease;
}

.search-overlay.active .search-container {
  animation: scaleIn 0.3s ease 0.1s both;
}

/* ===== Theme Toggle Animation ===== */
[data-theme="dark"] {
  transition: all 0.3s ease;
}

[data-theme="light"] {
  transition: all 0.3s ease;
}

.theme-toggle {
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: rotate(180deg) scale(1.1);
}

/* ===== Loading Animations ===== */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes dots {
  0%, 20% {
    color: rgba(var(--primary-rgb), 0.4);
    text-shadow: 0.25em 0 0 rgba(var(--primary-rgb), 0.4),
                 0.5em 0 0 rgba(var(--primary-rgb), 0.4);
  }
  40% {
    color: var(--primary-color);
    text-shadow: 0.25em 0 0 rgba(var(--primary-rgb), 0.4),
                 0.5em 0 0 rgba(var(--primary-rgb), 0.4);
  }
  60% {
    text-shadow: 0.25em 0 0 var(--primary-color),
                 0.5em 0 0 rgba(var(--primary-rgb), 0.4);
  }
  80%, 100% {
    text-shadow: 0.25em 0 0 var(--primary-color),
                 0.5em 0 0 var(--primary-color);
  }
}

.loading-spinner {
  animation: spin 1s linear infinite;
}

.loading-dots::after {
  content: '...';
  animation: dots 1.5s steps(5, end) infinite;
}



/* ===== Back to Top Button Animation ===== */
.back-to-top {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(100px);
  opacity: 0;
}

.back-to-top.visible {
  transform: translateY(0);
  opacity: 1;
}

.back-to-top:hover {
  transform: translateY(-5px) scale(1.1);
  animation: pulse 1s infinite;
}

/* ===== Image Lazy Loading Animation ===== */
.lazy-image {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-image.loaded {
  opacity: 1;
}

/* ===== Text Typewriter Effect ===== */
@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  50% { border-color: transparent; }
}

.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--primary-color);
  white-space: nowrap;
  animation: typewriter 3s steps(40, end), blink 0.75s step-end infinite;
}

/* ===== Progress Bar Animation ===== */
@keyframes progressFill {
  from { width: 0%; }
  to { width: var(--progress-width, 100%); }
}

.progress-bar .progress-fill {
  animation: progressFill 1.5s ease-out;
}

/* ===== Floating Element Animation ===== */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-20px) rotate(120deg);
  }
  66% {
    transform: translateY(10px) rotate(240deg);
  }
}

.floating-element {
  animation: float 6s ease-in-out infinite;
}

/* ===== Parallax Scroll Effect ===== */
@keyframes parallax {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50px); }
}

.parallax-element {
  animation: parallax 10s ease-in-out infinite alternate;
}

/* ===== Responsive Animation Control ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== Performance Optimization ===== */
.will-animate {
  will-change: transform, opacity;
}

.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* ===== Special Effect Animations ===== */
@keyframes rainbow {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.rainbow-effect {
  animation: rainbow 3s linear infinite;
}

@keyframes neon {
  0%, 100% {
    text-shadow: 0 0 5px var(--primary-color),
                 0 0 10px var(--primary-color),
                 0 0 15px var(--primary-color);
  }
  50% {
    text-shadow: 0 0 10px var(--primary-color),
                 0 0 20px var(--primary-color),
                 0 0 30px var(--primary-color);
  }
}

.neon-effect {
  animation: neon 2s ease-in-out infinite alternate;
}

/* ===== Page Transition Animations ===== */
.page-transition-enter {
  opacity: 0;
  transform: translateX(100px);
}

.page-transition-enter-active {
  opacity: 1;
  transform: translateX(0);
  transition: all 0.3s ease;
}

.page-transition-exit {
  opacity: 1;
  transform: translateX(0);
}

.page-transition-exit-active {
  opacity: 0;
  transform: translateX(-100px);
  transition: all 0.3s ease;
}

/* ===== Scroll Triggered Animations ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Mouse Follow Effect ===== */
.cursor-follow {
  position: fixed;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
  transition: transform 0.1s ease;
}

/* ===== Particle Effect Animation ===== */
@keyframes particle {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-100px) scale(0);
  }
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-color);
  border-radius: 50%;
  animation: particle 2s ease-out forwards;
}

/* ===== Text Highlight Animation ===== */
@keyframes highlight {
  0% {
    background-size: 0% 100%;
  }
  100% {
    background-size: 100% 100%;
  }
}

.text-highlight {
  background: linear-gradient(120deg, var(--primary-color) 0%, var(--primary-color) 100%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  background-position: 0 100%;
  animation: highlight 0.8s ease-out forwards;
  color: white;
  padding: 0 0.2em;
}

/* ===== Loading Skeleton Animation ===== */
@keyframes skeleton {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-secondary) 25%, 
    var(--border-color) 50%, 
    var(--bg-secondary) 75%);
  background-size: 200px 100%;
  animation: skeleton 1.5s infinite;
}

/* ===== 3D Flip Effect ===== */
.flip-card {
  perspective: 1000px;
}

.flip-card-inner {
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  backface-visibility: hidden;
}

.flip-card-back {
  transform: rotateY(180deg);
}